"This is a very serious case. Anyone out there who has children, this is a horror story," said Moore's defense attorney, Blaine Jones. "We're just hoping that people understand that Breona is so truly and deeply saddened and hurt by her own actions."

Allegheny County prosecutors said that Moore -- who was 5-foot-4 and 230 pounds at the time -- told friends she had given birth before buying hospital scrubs and pretending to be a nurse on Aug. 23, 2012.

She was found hiding in a closet inside the downtown high-rise Investment Building nearly five hours later with the child in her arms.

Moore's family told police she had been posting photos on Facebook, claiming to have just given birth to the boy. She is not able to have children.

"She's taking ownership of it," said Jones. "She was in a very difficult place in her life as what was stated on the record. She has some physical limitations which precludes her from having the ability to have children."

The lawyer said Moore has been treated at Torrance State Hospital since her arrest and is "in a much better place" mentally.

Jones remains in custody. She could face up to 58 years in prison and $115,000 in fines when she is sentenced.